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Flight 1455 departed McCarran International Airport (LAS), Las Vegas, Nevada at 1650, more than 2 hours behind schedule due to inclement weather in the area. At 1804:02, when the aircraft was 19 nmi (35 km) north of the BURouter marker, the SoCal approach controller instructed the aircraft to maintain 230 knots (430 km/h) or greater until further notice. The controller later informed the captain to place the aircraft into the approach pattern between two other flights. The captain acknowledged the instructions.

At 1804:42 the first officer informed the captain that the target airspeed for landing would be 138 knots (256 km/h). This value was based on standard procedures in the Southwest Airlines Flight Operations Manual (FOM). At 1805:13 the captain told the first officer that the air traffic controller had instructed them to remain at 230 knots (430 km/h) or greater "for a while."

At 1805:54 the controller cleared Flight 1455 to descend to 5,000 feet (1,500 m), and at 1807 cleared the flight to descend to 3,000 feet (900 m). At 1808 the controller cleared flight 1455 for a visual approach to runway 8 with a restriction to remain at or above 3,000 ft (above mean sea level) until passing the Van NuysVOR beacon. This navigational aid is approximately 6 miles (10 km) from the runway. Radar data suggest that the flight began its descent from 3,000 ft (910 m) about 4 mi (6 km) from the runway.[2]

According to the Aeronautical Information Manual Section 4-4-12f,[3] this approach clearance automatically canceled any previous speed assignments. According to the final accident report, traffic conditions no longer warranted the speed assignment after the controller cleared the flight to descend to 3,000 ft (910 m), but the controller did not verbally cancel the speed assignment.

Southwest Airlines procedures instruct the pilot not flying to make altitude call-outs at 1000, 500, 400, 300, 200, 100, 50, 30, and 10 feet (3.0 m). Additionally, call-outs are required if certain parameters are not met, in this case flight speed and sink rate. At 1809:32, one minute and thirteen seconds after approach clearance was given, and at 3,000 feet (910 m) of altitude, the captain began to slow the aircraft by deploying the flaps.

At 1810:24 the ground proximity warning system (GPWS) began to sound a "sink rate" warning in the cockpit. The aircraft was descending at an angle of 7 degrees, when the angle of descent for most aircraft landing on that runway was 3 or 4 degrees. Both pilots ignored the warnings. At 1810:44 the warning system in the cockpit began to sound. The captain responded to these warnings with "that's all right."

The captain stated after the accident that he knew as the aircraft passed 500 feet (150 m) that he was not "in the slot," meaning the conditions had not been met for a safe landing, in this case because of an excessive airspeed. The captain further stated that he understood that if he was not "in the slot," procedures demanded a go-around maneuver to abort the landing. He could not explain why he did not perform a go-around maneuver. The first officer likewise indicated after the accident that he was aware that they were not "in the slot," but said he believed the captain was taking corrective action.

The aircraft touched down on the wet runway at 44 knots (81 km/h) over the target airspeed. Furthermore, it touched down 2,150 feet (660 m) from the runway threshold, 650 feet (200 m) beyond the 1000–1500 ft range established by the Southwest Airlines FOM. The captain deployed the thrust reversers and then he and the first officer applied manual brakes, but according to the NTSB findings, under those conditions even maximum braking would not have prevented the aircraft from overrunning the end of the runway.

The NTSB released a transcript of the cockpit voice recorder, in which the flight's captain was quoted as saying, "Well, there goes my career," moments after the accident.[4]

The Boeing 737 overran the end of Runway 8 while landing at Burbank-Glendale-Pasadena Airport. "The airplane touched down at approximately 182 knots, and about 20 seconds later, at approximately 32 knots, collided with a metal blast fence and an airport perimeter wall."[5] It finally came to rest on Hollywood Way, a four-lane city street, near a Chevron gas station. The nose section and front landing gear were sheared off, but otherwise the fuselage remained intact and there was no compromise of the cabin area. However, the 737 sustained structural damage from the accident and was later scrapped. It was in any case one of the oldest aircraft in Southwest's fleet, having been originally built for Orion Airways in 1984.

The NTSB concluded that the probable cause for the accident was excessive flight speed and the steep angle of the glidepath (7 degrees, as opposed to the 3 degrees normally used for both visual and instrument approaches), and the flight crew's failure to abort the approach when conditions were not met for a stable approach and landing. The action of the flight controller was listed as a contributing factor in the accident: "Contributing to the accident was the controller's positioning of the airplane in such a manner as to leave no safe options for the flight crew other than a go-around maneuver."[5]

Months later, the pilots were fired as a result of this incident.[6] Southwest Airlines admitted the pilots' actions were negligent.[7]

At the time, a Southwest spokesperson termed it "the worst accident" in the airline's history.[8][9] Air safety experts and pilots suggested the accident was an example of a situation where "fast, steep, unstabilized approaches" are dangerous, and of how inadequate the safety margins around the Burbank runways are (as well as similar U.S. airports).[10]

The gas station missed by the aircraft was later closed and demolished due to safety concerns. The lot became dedicated green space.

Of the 142 persons on board, 2 passengers sustained serious injuries; 41 passengers and the captain sustained minor injuries; and 94 passengers, 3 flight attendants, and the first officer sustained no injuries. The airplane sustained extensive exterior damage and some internal damage to the passenger cabin. During the accident sequence, the forward service door (1R) escape slide inflated inside the airplane; the nose gear collapsed; and the forward dual flight attendant jumpseat, which was occupied by two flight attendants, partially collapsed.

The inflated escape slide blocked both forward doors from being used to evacuate the aircraft, and prevented two flight attendants seated on the forward jumpseat from assisting the evacuation. There was no fire, but had there been a fire, this malfunctioning slide would have dramatically affected the survivability of the occupants. As a result of this occurrence, the NTSB issued a safety recommendation to replace the slide cover latch brackets on forward slide compartments of all older Boeing 737 models with the latch brackets installed on later models.

Burbank city officials demanded that Southwest Airlines pay their $40,000 bill for services, including overtime for police officers and firefighters, related to the March 5, 2000 accident. Southwest refused to pay stating that the airline is entitled to emergency services since it pays taxes to the city.[13]

^"Southwest Concedes Pilot Negligence". Associated Press. October 8, 2001. Southwest Airlines is willing to concede its fired pilots were negligent when a jet skidded off a runway and onto a street during a botched landing at Burbank-Glendale-Pasadena Airport last year, the airline's attorney said.

^Lunsford, J. Lynn (August 2, 2000). "Southwest Airlines Fires Pilot, Co-Pilot Involved in Burbank, Calif., Crash.". Knight Ridder/Tribune Business News. The airline fired the pilots after completing an internal investigation of the March 5 crash of Flight 1455, which was the first major accident in Southwest's 29-year history.